/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.client;

import javax.cache.configuration.CacheEntryListenerConfiguration;
import org.apache.ignite.cache.query.ContinuousQuery;

/**
 * Client disconnected event listener. Such listeners can be used in {@link ClientCache#query(ContinuousQuery,
 * ClientDisconnectListener)} or {@link ClientCache#registerCacheEntryListener(CacheEntryListenerConfiguration,
 * ClientDisconnectListener)} methods to handle client channel failure.
 */
public interface ClientDisconnectListener {
    /**
     * Client disconnected callback.
     *
     * @param reason Exception that caused the disconnect, can be {@code null}.
     */
    public void onDisconnected(Exception reason);
}
